THREE-DIMENSIONAL INTRAVASCULAR IMAGING WITH ULTRASOUND

该项目的目标是开发一种超声成像方法， 用于激光血管成形术的前视引导的换能器设计 导尿管 这项新技术解决了当前 腔内成像设备作为机载引导，可以成为关键 治疗动脉疾病的新手术工具的组成部分 在血管系统中。 成像是基于三维稀疏 阵列重建与新的方法，以提高动态范围。 换能器将采用新的加工方法制造， 压电材料正在通过一个财团的安排， 密苏里大学罗拉分校 开发的技术将 影响范围广泛的治疗设备。 指导有可能 通过斑块的可视化扩展血管内治疗的作用， 监测在手术期间移除的材料的量，以及 防止血管穿孔。 第一代血管内手术 技术，如球囊血管成形术，提供治疗超过300 每年有1000名患者。 第二代设备。 在指导下， 提高介入治疗的有效性， 患者适合介入治疗，并具有显著的 通过减少旁路移植术的数量对医疗保健费用的影响 手术

The goal of this project is to develop an ultrasound imaging method and transducer designs for forward looking guidance of a laser angioplasty catheter. This new technology, which addresses the limitations of current intraluminal imaging devices as on-board guidance, can become a key component of new surgery tools for the treatment of arterial disease from within the vascular system. Imaging is based upon three-dimensional sparse array reconstruction with novel approaches for improving dynamic range. The transducers will be fabricated from new, methods for processing, piezoelectric materials being developed through a consortium arrangement with the University of Missouri-Rolla. The technologies developed will impact a wide range of therapy devices. Guidance has the potential to expand the role of intravascular therapy through visualization of plaque, monitoring the amount of material removed during a procedure, and preventing vessel perforation. First generation intravascular surgery techniques, such as balloon angioplasty, provide therapy to over 300 thousand patients a year. Second generation devices. with guidance, can improve the effectiveness of interventional therapy, increase the number of patients suitable for interventional treatment, and have a significant impact on health care costs by reducing the number of bypass graft surgeries.